Comparisons
* Cars ..........................1964 Belvedere 426-S 'Sedan' ........... 1968 Road Runner 383 'Coupe'
* Shipping Weight.......... #3347 lbs. ........................................ #3422 lbs.
The Belvedere 'Sedan' with the '426' Commando is {75 lbs.} lighter.
That would be worth .10 {1/10th} in Elapsed Time.
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* Carburetor ............. AFB .................................................... AVS
* Model .................... #3611 ................................................ #4426
* CFM ........................ 575 .................................................... 625
* Throttle Sizes ........ 1.437" x 1.563" .................................. 1.437" x 1.686"
Advantage with the Road Runner. The Carter AVS {625 CFM} provided 'more' fuel than the Carter AFB {575 CFM}.
And the bigger Secondary {1 11/16"} provided more Top-End.
The Carter AFB {575 CFM} for the 426 Street-Wedge was woefully under-sized.
